Coupling.



M. PREUSS.

COUPLING.

APPLICATION FILED FEB. 28, 1911.

Patented Dec. 3, 1912.

awue/wtoz fl/ax Preu 53 COLUMBIA PLANOURAPH 20., WASHINGTON, D. c.

UNITED STATES PATENT @FFTGE.

MAX PREUSS, OF NEW YORK, N. Y.

COUPLING.

Application filed February 28, 1911.

Specification of Letters Patent.

Serial No. 611,318,

T 0 all whom it may concern Be it known that 1, MAX ject of the Emperorof Germany, New York, in the county of New York and State of New York,have invented new and useful Improvements in Couplings, of which thefollowing is a specification.

The invention relates to couplings, particularly to pipe couplings, andhas for an objectto provide a device for easily and efficiently couplingpipe ends or the like. For the purpose mentioned, use is made of anapertured clamping member for peripheral engagement with pipe ends, aring encircling the said clamping members and provided with a segmentalgear, gripping lugs pivotally mounted on the ring and ex- PRnUss, asubtending through apertures in the clamping member, and a toothedlocking member mounted on the clamping member and engaging the rack tooperate the ring to move the gripping lugs into gripping engagement withone of the said pipe ends, thus detachably connecting the said ends.

Reference is to be had to the accompanying drawings constituting a partof this specification, in which similar characters of reference denotecorresponding parts in all the views and in which,

Figure 1 is a top plan view. Fig. 2 is a vertical longitudinal section.Fig. 3 is a transverse section disclosing the gripping lugs of mydevice, taken in the line 33 of Fig. 2. 7

Referring more particularly to the various views I employ a clampingmember 10 for peripheral engagement with flange portions 11 integrallyformed on pipe ends 12, each of said flange portions being provided ontheir outer surfaces with suitable abutting packing rings 13. Theclamping member 10 is provided with integral peripheral circular flanges14: and 15- extending laterally in opposite directions and adjacent theflange 14: a series of apertures 16 are provided in said clampingmember. Rotatably mounted on the clamping member 10 is a ring 17 andpivotally mounted on the said ring are a plurality of gripping lugs 18extending inwardly through the apertures in the clamping member. On theouter surface of the ring 17 is provided an integral segmental gear 19and pivotally mounted on the clamping member 10 is a toothed segmentallocking member 20, the said teeth on the locking member being disposedto enresiding at v gage the said segmental gear. A handle 21 is providedfor detachable engagement with the segmental locking member 20 tooperate the said locking member to actuate the ring 17 and move thegripping lugs 18 into gripping engagement 12. The handle 21 is providedwith an integral pin 21 extending laterally therefrom and is alsoprovided with an integral laterally extending lug 21", the said pin 21be ing adapted to fit into an aperture in the segment 20 and the saidlug 21 being adapted to abut against the segment 20 when the handle isattached thereto so that when the handle 21 is operated the same willactuate the segment 20 with respect to the segmental gear 19.

The gripping lugs 18 have their lower ends adjacent the flange 11beveled, so that when the lugs 18 are moved to engage the flange 11 thebeveled edge will contact with the flange and tend to exert a lateralmovement with respect to the pipe 12, thus holding the flanges 11closely together.

In the operation of my device as described, when the same is applied tothe pipe ends after the said pipe ends have been positioned to aline asshown in the drawings, by operating the handle 21 the gripping lugs 18not only engage one of the flanges 11 to exert a lateral movement, butthe ends of the said lugs substantially grip one of the pipes 12, thuspreventing any sliding movement of the various coupling members.

It will be readily seen that by providing the packing rings 13 asheretofore mentioned, and connecting the pipe ends as described, anyleakage at the point of connection is prevented and it will be furtherunderstood, that although for the purpose of describing my invention 1have shown a particular form of construction, the scope of the inventionis defined in the appended claims.

Having thus fully described the invention, what I claim as new, is 2-Patented Dec. 3, 1912.

wi h one of the pipe ends 1. In a coupling, the combination with an saidring and extending through the aper- 110 tures in the said clampingmember to engage the flange of one of the said pip es, a segmental gearformed on the said ring and a s of the other pipe, a segmental segmentallocking member mounted to turn on the said clamping member and movableto engage the said segmental gear and operate the said ring on the saidclamping member.

2. In a coupling, the combination with an apertured clamping member forperipheral engagement with the flange ends of connectible pipes, of aninwardly extending circular flange formed on the said clamping memberand adapted to engage the flange of one of the pipes, a ringrotatablymounted on the said clamping member, gripping lugsequidistantly mounted to swing on the said ring and extending throughthe apertures in the clamping member to engage the flange gear formed onthe said ring and a segmental looking member mounted to turn on the saidclamping member and movable to engage the said segmental gear to operatethe said ring on the sald clamping member.

3. In a coupling, the combination with an apertured clamping member forperipheral engagement with the flange ends of connectible pipes, of a.ring rotatably mounted on the said clamping member, gripping lugsequidistantly mounted to swing on the said ring and extending throughthe apertures in the said clamping member, portions of the said grippinglugs being beveled and engaging the flange of one ofthe said pipes, asegmental gear formed on the said ring, a segmental looking membermounted to turn on the said clamping member and movable to engage thesaid segmental gear and operate the said ring on the said clampingmember and .a handle for removable engagement with the said segmentallocking member for operating the same to engage the said looking memberwith the said segmental gear.

In testimony whereof I afiix my signature in presence of two witnesses.

MAX PREUSS.

Witnesses:

CQNRAD KALB, JOSEPH SoBEL.

E V l 7 Copies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

Washington, D. C.

